Exterra Carbon Solutions develops engineered mineral carbonation technology to convert mineral waste into durable CO2 storage, effectively creating large-scale carbon sinks. This process addresses the urgent need for permanent carbon sequestration to mitigate climate change by providing a reliable solution for industrial emitters and direct-air-capture companies.
Funding
$2.4M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Founders
Product
Problem
Industrial emitters and direct-air-capture companies require reliable and scalable methods for permanent carbon sequestration to mitigate climate change. Existing carbon storage solutions may lack long-term durability or require costly monitoring, hindering widespread adoption. Mineral waste from mining operations represents an underutilized resource that could be transformed into stable carbon sinks.
Solution
Exterra Carbon Solutions develops engineered mineral carbonation technology that transforms mineral waste into durable CO2 storage, creating large-scale carbon sinks. Their proprietary LOW™ (Low-carbon Oxide from Waste) circuit extracts reactive alkaline minerals from ore or tailings using mature thermochemical technologies. The ROC™ (Reactive Oxide to Carbonate) circuit then mineralizes CO2 into stable carbonate minerals at atmospheric conditions, eliminating the need for separate capture steps and underground storage. This process provides a turnkey solution for permanent, verifiable storage of captured CO2, generating high-quality carbon credits and integrating the mining industry into the circular economy.
Target Audience
Exterra's primary customers include industrial emitters, direct-air-capture companies seeking permanent CO2 storage, mineral waste producers looking to improve their environmental footprint, and carbon credit buyers seeking high-quality, durable credits.
Features
- LOW™ (Low-carbon Oxide from Waste) circuit: Electrifiable process for extracting reactive alkaline minerals (CaO and MgO) from mineral waste.
- ROC™ (Reactive Oxide to Carbonate) circuit: Mineralizes CO2 into stable carbonate minerals at atmospheric conditions.
- Ex-situ carbon mineralization ensures permanent storage without risks of leakage or reversal.
- CO2-bearing minerals are kept on-site for backfill and site rehabilitation, ensuring auditable carbon credits.
- Process uses mature technology with low-energy demand and minimal plant footprint for scalability.
- Reduces environmental risks from mineral waste and contributes to the circular economy through byproduct extraction.